<?php
/**
 * @author Feng
 * @date 2012-6-17
 */
class collection_special_row extends collection_rule_row {
	
	protected $_item = null;
	/**
	 * @return collection_item_row
	 */
	public function getItem() {
		if($this->_item === null || $this->_item->getId() != $this->getItemId()) {
			$concept = new collection_item_concept();
			$this->_item = $concept->fetch(array('item.id = ?' => $this->getItemId()));
		}
		return $this->_item;
	}
	
}
